FSA221_07 Datasheet, PDF (1/2 Pages) Fairchild Semiconductor – USB2.0 High-Speed (480Mbps) and Audio Switches with Negative Signal Capability

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April 2007
FSA221 — USB2.0 High-Speed (480Mbps) and
Audio Switches with Negative Signal Capability
Features
ƒ HS-USB: 4Ω Typical On Resistance
ƒ HS-USB: 4.5pF Typical On Capacitance
ƒ Audio: 3Ω Typical On Resistance
ƒ -3db Bandwidth: > 720MHz
ƒ Low Power Consumption
ƒ Power-off Protection on Common D+/R, D-/L Ports
ƒ Automatically Detects V_bus for Switch Path
Selection
Applications
ƒ Cell Phone, PDA, Digital Camera, and Notebook
ƒ LCD Monitor, TV, and Set-Top Box
Ordering Information
Description
The FSA221 is a Double-Pole, Double Throw (DPDT)
multiplexer that combines a low-distortion audio and a
USB2.0 High-Speed (HS) switch path. This
configuration enables audio and USB data to share a
common connector port. The architecture is designed to
allow audio signals to swing below ground. This means
a common USB and headphone jack can be used for
personal media players and portable peripheral devices.
Since USB2.0 is an industry standard for shared data-
path in portable devices, the FSA221 also incorporates
a V_bus detection capability. The FSA221 includes a
power-off feature to minimize current consumption when
V_bus is not present. This power-off circuitry is available
for the common D+/R, D-/L ports only. Typical
applications involve switching in portables and
consumer applications, such as cell phones, digital
cameras, and notebooks with hubs or controllers.
IMPORTANT NOTE:
For additional performance information, please contact
[e-mail]
Part Number
FSA221L10X
FSA221MUX
FSA221UMX
Package Number Top Mark Pb-Free
Package Description
MAC010A
MUA10A
MLP010A
GK
FSA221
GL
Yes 10-Lead MicroPak, JEDEC MO-255, 1.6 x 2.1mm
Yes 10-Lead MSOP JEDEC MO-187, 3.0 mm Wide
Yes
10-Lead Quad, Ultrathin MLP, 1.4 x 1.8mm
Vbus
Vaudio
D+
R
D--
L
Switch Select
Control Circuitry
ASel
R_pd
GND
D+/R
D-/L
© 2006 Fairchild Semiconductor Corporation
FSA221 Rev. 1.0.6
Figure 1. FSA221 Analog Symbol
www.fairchildsemi.com